Winding fabrication method and apparatus for electric coils
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United States of America Patent
Stats
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Jun 22, 2004
Grant Date -
May 29, 2003
app pub date -
Sep 26, 2002
filing date -
Nov 29, 2001
priority date (Note) -
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Abstract
A conductor wire material CW is wound into an accurate size without causing floating and deformation when an electric coil is formed. When the conductor wire material CW supplied from a wire material feed portion 3 is wound by turning a coil-winding mold 4 and is processed to fabricate an electric coil having a desired coil shape, the coil-winding mold 4 is linearly moved in a direction D away from the wire material feed portion 3 by a distance corresponding to a major side portion 40a to impart predetermined tension to the conductor wire material CW when a winding portion 40 of the coil-winding mold 4 on which the conductor wire material is wound is the major side portion 40a, and the coil-winding mold 4 is rotated when the winding portion 40 of the coil-winding mold 4 on which the conductor wire material is wound is a minor side portion 40b.
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